Circular-knitting machine



.No. 607,853. Patented July 26, I898. T. J. HOLTON.

CIRCULAR KNITTING MACHINE.

(Application filed Aug. 18, 1894.)

(No Model.) 3 Sheets-Sheet l.

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No. 607,853. Patented July 26, I898. T; J. HOLTON.

CIRCULAR KNITTING MACHINE.

(Application filed Aug. 18, 1894.)

(No Model.)

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No. 607,853. Patented My 26', I898.

. T. J. HOLTON.

CIRCULAR KNITTING MACHINE.

(Application filed Aug. 18, 1894.)

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Nrrnn STATES FFlCEQ CIRCULAR-KNITTING MACHINE.

SPECIFICATION formingpart of Letters Patent No. 607,853, dated July 26, 1898.

I Application filed August 18, 1894:. Serial No. 520,741. (No model.)

To all whom it may concern:

Be it known that I, THOMAS J. HOLTON, a citizen of the United States, residing at Philadelphia, county of Philadelphia, State of Pennsylvania,haveinvented an Improvement in Circular-Knitting Machines, of which the following is a specification.

My invention relates to circular-knitting machines; and it consists of certain improvements in that class of machines fully set forth in the following specification and accompanying drawings, forming part thereof.

It is customary in circular-knitting machines in forming the heel and toe pouches or bulges of stockings, as is well known, af-' ter knitting the leg and arriving at the proper point for beginning the knitting of the heel or toe bulge or pocket to raise into inoperative position a certain number of needles on one side of the machine. The number thus raised is generally about one-half of the entire series of needles employed in the machine, the said raised needles retaining their loops thereon. The needle-actuating camcarrying cylinder is then reciprocated, and at each limit of rotary reciprocation thereof the end needle in operation is raised, it retaining its loop, and thus gradually narrowing the web being knit, and thereby partly forming the heel or too pouch, pocket, or bulge. Af-

- ter thus narrowing to the desired extent and producing the desired taper to the knitted fabric the needles last raised out of action are consecutively restored to operative position through the action of the reciprocating cam-cylinder, and thus is formed the second portion of the web, this portion becoming gradually widened and joined at its edges to the edges of the narrowed portion first formed. When these two edges and portions are so united, they form the pocket or bulge which forms the heel. On the completion of this heel-formin g pocket all the needles which were left in action before the commencement of the forming of the heel-pouch have been restored to operative position, and the other half of the needles, which were thrown out of action before the commencement of the knitting of the heel, are restored to operative position. The cam-cylinder then ceases,through hand-controlled means, to be reciprocated, but rotates, and the circular knitting is then proceeded with until is is desirable to form the toe, when one-half of the needles are again raised out of operative position and the cam-cylinder again reciprocates in a manner and with a result similar to that already described in the formation of the heel pouch or bulge. Mechanism for accomplishing the above results is old in various specific forms and forms no part of my present invention.

My invention consists in providing an automatic lock for stopping the mechanism when the circular knitting has reached the stage requiring the raising of onehalf of the needles out of operative position previous to the formation of the heel-pouch and to stop the machine again on the completion of the heel pouch or bulge, again arresting the machine on the completion of the circular knitting forming the foot, and yet again on the completion of the toe-pouch. -I thus predetermine the size of the leg, heel, foot, and toe portions of the stocking by my invention. My lock being automatically operated, the result I accomplish is low cost of production by having one hand or attendant to attend to six or more machines.

My invention consists, secondly, in having an endless sprocket-chain divided into a series of sections. These sections are predetermined by a projecting pin integral with or firmly fixed to the proper-positioned links of the chain. The distance of the pins apart predetermines the length of the leg and foot of the stocking and also the size of the heel and toe. On commencingthe knitting of a stocking after the formation of the leg, the

said projecting pins are gradually carried forward on the supporting-chain until one strikes a spring-actuated lever. This lever is in effect a lock for the belt-shifter, and the effect of this pin engaging this look is to unlock the belt-shifter, and thereby shift the belt to the loose pulley. A weighted arm normally holds the belt-shifter arm in tension, and immediately on its being raised, as described, the said shifter-arln is forced over, shifting the belt on the loose pulley, thus stopping the machine.

A third feature of my invention consists in a simplified mechanism for reciprocating the cam-cylinder. This mechanism consists of a crank belt-wheel, a lever connected thereto at one end and to a segmental rack at the other. This segmental rack actuates a pinion, and the pinion is fixed to the shaft which carries the bevel-gear, whereby the cam-cylinder is reciprocated.

In the drawings like parts are referred to by letters or figures of a corresponding kind in the different-views.

Figure 1 is a part vertical section through the cam-cylinder, its actuating bevel-wheel, and protecting-shield, also a side elevation of the mechanism composing my invention. Fig. 2 is atran sverse section through the main shaft of the machine and side elevation of the mechanism employed to operate the sprocketwheel which carries my lock-tripping chain. Fig. 3 is a plan of the needles. The section 1 of this plan indicates the number of needles raised out of action on the completion of the knitting of the leg. The sections 2 and 3 indicate the proportion of needles employed when forming the first portion of the heelforming pocket, &c. The arrows indicate the direction in which the needles are consecutively thrown up out of action by the reciprocating cam-cylinder. Fig. 4 is also a plan of the needles, 1 indicating the raised needles, 2" and 2 showing the proportion of needles employed when forming the remaining portion of the heel-pocket. The arrows in this figure indicate the direction in which the needles are consecutively returned to action during this function. Fig. 5 is a plan of a circular-knitting machine having my improvements applied thereto and a horizontal section of some of the parts supported on the main shaft. Fig. 6 is an enlarged side elevation of my sprocket-wheel, showing one of the tripping-pins. The arrow on this view shows the direction in which the sprocketwheel normally turns. Fig. 7 is an end view of my machine. Fig. 8-is a diagram, which will be more fully hereinafter explained. Fig. 9 is a side elevation of one of the needlepickers carried by the cam-cylind er, and such as is used for raising the needles from an op erative to an inoperative position.

A is a bench or table on which are usually fixed a series of knitting-machines arranged on either or both sides thereof.

1 is the supporting metallic frame for the machine, and is fixed in a firm manner to the table A by screws A A A. This metallic frame serves as an only support for the entire machine. It is provided on its outer projecting end with an annular flange 37. (Shown best in section, Fig. 1.) The inner'face of the vertical annular flange 37 and the upper face of its right-angular inward-projecting supporting-base 37 are finished smooth and true and form the support for the cam-carrying cylinder 38. This cam-carrying cylinder has an external annular flange 38, which is fittedinto the angular ring formed by the united flanges 37 and 37. Angularly depending from the flange 38 of the cam-cylinder is an annular rim 37 having teeth on its outer side, thereby forming a bevel gear-wheel.

30 is a bevel-gear mounted on the main driving-shaft 11 of the machine. The teeth of this gear mesh with the teeth of the bevel 37 and therefore when the shaft 11 rotates the cam-cylinder 38 also rotates. The means employed for actuating the cam-cylinder is old and well known and not of my invention.

6 and 6 are integral arms forming supports for different mechanical elements composing my mechanism. These arms or supports could be integral with the main supporting plate 1 or held firmly thereto by screws. In the drawings, Fig. 1, they are shown as an integral part of the flange 37 of the said supporting-plate 1.

29 is a depending integral part of the arm 6 aforesaid, and it serves as a bearing for the shaft 11. It also carries at its lower end a sleeve-stud Z. (Shown best in Fig. 5.) This stud is the support for the sprocket-wheel O. This stud must be finished smooth and concentric with the center of the bore therein, which carries the shaft 11.

20 is a ratchet-wheel. This wheel and the sprocket-wheel O are firmly fixed together, or they can be integrally united, as shown in section, Fig. 5. The stud Z thus becomes a journal for the sprocket-wheel O and the ratchet-wheel 20. O carries and actuates the sprocket-chain 28.

17 is a blank-wheel carrying a trippingpin 17 on its periphery.

23 is alocking-pawl for the ratchet-wheel 20.

18 (shown in plan, Fig. 5) is an integral projection of the arm 6 and serves as a support for the ratchet-wheelactuating arm 18, being held oscillatory by the pivotal screw '18, Figs. 5 and 7.

21 is a pawl or dog carried pivotally at the rearward end of the arm 18. This pawl actuates the ratchet-wheel 20, and 011 each revolution of the main shaft 11 the said wheel is moved rotatively a distance equal to the distance of the pitch of one tooth of said wheel, the spring 22 returns the arm 18 back against the pin 22 and it is ready for the next operation. The wheel 17 is firmly fixed to the main shaft 11, and therefore rotates when the said shaft is rotated. The arm 18 at its forward end carries a trip pawl or dog 19. The purpose of this dog is to permit the trippingpin 17 of the wheel 17 to be rotated in the direction of the arrow 1), Fig. 2, without oscillating the arm 18, but when the wheel 17 turns in the opposite direction the pawl 19 be-.

comes locked against individual pivotal movement, and thus is oscillated the arm 18 to the position shown in the dotted line L, Fig. 2. This oscillation contemplates the moving of the pawl 21 to the position shown by the dotted line in the same figure. The pawl 19 therefore is only called in use when it is desirous of reciprocating the cam-cylinder, for it is only when the wheel 17 is thus recipro- IIC cally actuated that the tripping-pinl? moves in the direction of the arrow 1), its normal rotary motion being in the direction of the arrow C, Fig. 2. 16, Fig. 5, is also an integral projection of the arm 6. This arm supports the clutch-shifting rod 12 (shown in Fig. 5) through the primary shifting-rod supports 13 and 14, integral therewith. These arms 13 and 14 form, in eifect, one continuous arm, cored or drilled throughout its length, and this hole is the contact bearing for the aforesaid rod 12.

15 is a hand-controlled clutch-operating lever pivoted to the arm 6 at 14 Fig. 1. The clutch-operating-rod support 13 and 14 has a slot in its side adjacent to the lever 15, and in this slot the pin 14 plays freely, the said pin being connected to the lever at one end and to the aforementioned clutch-rod at the other. The dotted line f, Fig. 1, indicates the position the clutch-operating arm 15 will occupy when the clutch is locked, and this position corresponds to the position of the belt, as shown in dotted lines 46, Fig. 1.

5 is a pinion rotating freely on the main shaft 11 and operated by the segmental rack 6, which rack is reciprocated by the arm 4, fixed to the wheel 2, the main driving-wheel for the reciprocating movements of the machine. This wheel 2 is supported on the frame 1 by the standard B, to which its journal D is attached.

The dotted circle C Fig. 7, indicates the orbit of the center of the crank-pin C and its diameter the traverse of the segmentalrack 6.

9 and 8 are respectively left and right parts of the clutch. They are so constructed as to form a right-and-left clutch-that is, a clutch that will transmit motion rotatively with power, driving it in either direction. When, therefore, the parts forming the clutch are engaged, I can reciprocate the shaft 11 by rotating the wheel 2, and through this shaft the cam-cylinder 38, as hereinbefore described.

33 is a fast pulley on the shaft 11, and 34 a loose pulley thereon.

E is the main driving-shaft for a series of machines in practice and is supported in suitable bearings on the under side of the table on which the knitting-machines are mounted. I do not show bearings for the support of this shaft, as their use and construction are so well known.

D is therefore the prime mover for operating the segmental-rack-operating wheel 2. This, it will be remembered, is the means for producing reciprocating motion to the camcylinder. It is hardly necessary to observe that the clutch-jaw 9 and the pinion 5 are integral and that the slotted jaw of the arm 10 engages the annular groove 10, intervening between the said jaw and pinion proper.

31 is a bar having a catch 31 on its upper side and supported in suitable guides, as G. At the one end it carries a belt-shifting link 32.

25 and 25 are integral arms of a bell-crank lever, operated by the arm 24 to actuate the belt-shifting bar 31 in the direction of the arrow It a distance equal to the distance from f tof Fig. 1 The tripping-arm 24' 24 must be so timed or adjusted that it will oscillate the bell-crank 25 25 so the bar 31 will move longitudinally from f to f as aforementioned. This movement shifts the belt from the fast to the loose pulley.

Fig. 6 is an enlarged view of the mechanism for actuating the shifting-bar 31. The

pins 0, the orbit of the end of this pin being' shown at 0, Fig. 6.

This pin is moved in the direction of the arrow in Fig. 6 until its point comes in contact with the cam-shaped face 24 of the handle-half 24 of the lever 24. On further movement of the chain this lever is oscillated until it takes the position shown in the dotted lines, Fig. 6, at which time the bar 31 is moved, thus shifting the belt from the fast to the loose pulley and stopping the machine.

42, K, and M are a series of levers controlled by a handle, (indicated only by dottedline H in Fig. 1 and 36 in Fig. 5.) A hand-' controlled means is thus provided for shifting the belt 46. When the lever 24 24 24 is oscillated to the position shown in the dotted lines, Fig. 6, the bevel-shaped locking projection 24 is raised from contact with its copart I, Figs. 2 and 6, and the spring S thereupon disengages the clutch-jaws Sand 9, thus stopping the reciprocations of the cam-cylinder.

7 is a post, its only function being to support the wheel 50 through the intermediary 50.

In Fig. 9 is shown a well-known way of raising a needle automatically from an operative to an inoperative position. It is not of my invention and is only shown because. of

the functional cooperation between the lifting or lowering of a needle and my automatic lock. It is well known in circular-knitting machines that the needle-carrying cylinder is stationary and the needle-actuating cam-carrying cylinder rotates. Fig. 9 shows the inner side of a cam-carrying cylinder 38. X is the lower normal operative position of the needle-picker, and X the upper needle-picker normal line. Now as the cam-cylinder rotates the forward needle N will be engaged by the offset at the point of the needle-picker M, and the rotation of the cam-plate will force the slotted bar WV against the fixed cam M on the outer side of the cam-cylinder 38. The arm WV will then be oscillated until it discharges the needle on the line X at N.

The spring M will then return the arm W; to its normal position. The spring M will return the dog M back against the pin M*, and it will be ready for the next operation. At the end of each right and left reciprocation of the rotary cam-cylinder one of the needles is returned to operative or inoperative position during the knitting of the heel or toe pouch, depending upon whether a narrowing or widening operation is being performed.

In practice there is a device for raising needles out of action and one for throwing them tedlines, same figure.

into action. They are substantially the same in structural elements, differing only on their location on the cam-cylinder, one being inverted, the other not, as is well known.

I will now describe the operation of my invention in connection with well-known features of a circular-knitting machine.

In Fig. 7 is shown a side elevation of a sprocket-chain 28. This chain, as before described, is supported and operated by the wheel 0. Now on knitting a stocking after the loops are formed and the needles thread ed the cam-cylinder is rotated in the manner and by the means herein set out. This rotation of the cam-cylinder is continued until the leg of the stocking is formed. While this formation of the stocking-leg is in process the said chain 28 will have moved over its supporting-wheel a distance equal to the distance from pin 19 to pin 27'. This portion of the chain therefore predetermines the length of the stocking-leg, for immediately on the pin 19 reaching the position shown by 0, Fig. 6, it will engage the cam-face 24: of the locking arm 24 of the belt-shifting bar 31, and this arm will be thereby oscillated to the position shown in the dotted lines in 6, forcing the bar 31 from the position shown in the solid drawing, Fig. 1, to that shown in the dot- This movement 0on templates the shifting of the belt from the fast to the loose pulley. The machine is thus automatically stopped. It will be understood.

that in starting the machine on the commencement of the knitting of a stocking the pin p of the sprocket-chain 28 should be just beyond the cam 24 of the locking-arm 24 2-1 24. I thus get the full length of the stocking-leg. The leg being completed and the machine automatically stopped, as described, one-half of the needles carried by the stationary needle-cylinder are raised up out of operative position by any. of the well-known hand-controlled means, and, as indicated by section 1, Fig. 3, I then proceed to form the heel. I then through the handle 15 engage the clutch-jaw 8 and 9, and thereupon the wheel 2, operating the link 4, oscillates the segmental rack 6, thus communicating, through the pinion 5, shaft 11, and bevel-gear 30, a circular reciprocating motion to the cam-cylinder 38. Now it will be remembered the pin 17 of the wheel 17 only operates the lever 18 when moving in the direction of the arrow 1), Fig. 2, and as one needle is raised by the needle-picker M up out of action on each right reciprocation of the cam-cylinder 38 and one is raised up out of action on each left reciprocation thereof two needles are raised up out of action on each operation of the arm 18. Therefore for every movement of the ratchet-wheel 20 and sprocket-chain 28 a distance equal to the pitch of one tooth of said wheel the onehalf of the heel-bulge will have been expanded two stitches. This expansion of the heel-bulge is continued until the needles are alternately in consecutive order raised out of action to a quantity degree equal to the number contained in section 2 and 3, Fig. 3, whereupon the pin 19 will have reached the position indicated at 0 in Fig. (3, and the arm 24 24 24 will be oscillated and the machine thereby stopped by the disengagement of the clutch members in the manner previously described. I have now formed the leg and one half of the heel bulge or pocket. I will now proceed to form the remaining half of the heel-bulge. This is done by throwing into operation the needle-picker carried by the cam-cylinder for returning the needles to operative position or from line :0 to line 00 Fig. 9. Needle-pickers for this purpose are of various specific designs (such as shown in Fig. 9 will accomplish the purpose) placed in an inverted position from that shown in this drawing. After the needlepicker is thrown into action the clutch is reengaged and the cylinder is again made to reciprocate and the needles are returned to their normal position of action one by right and left alternately in the direction of the arrow in Figs. 4 and 5 and to a quantity degree equal to sections 2' and 3 in this same figure, which corresponds to sections 2 and 3 in Fig. 3. When the last of the needles embraced in sections 2 and 3 have been returned to operative position, the pin 19 of the sprocket-chain 28 will have come in contact with the cam-face 24E of the shifter-lock aforementioned and the machine will be thus again automatically stopped. The heel-pouch is now completed and all the needles in sections 2' and 3, Fig. 4c, are returned to their normal or operative position. I now return the needles embraced in sections 1 and 1 to their normal or operative position and rotate the cam-cylinder in the manner hereinbefore described. During this rotation of the camcylinder the foot of the stocking is knitted and during this knitting of the foot the sprocket-chain moves a distance equal to the distance from the pinp to pin 19 (see Fig. 7,) and when the foot is thus formed to the length thus predetermined the pin 19 will engage with the cam-face 24: on the shifter-locking arm previously described and stop the machine. I then again raise the one half of the needles carried by the needle-cylinder out of operative position and in like manner as the heel form one-half of the toe-bulge. During this operation the chain 28 moves a distance equal from p to 0. The machineis then again automatically stopped. The picker for throwing down the needles is now thrown into action, the cam-cylinder made to reciprocate, and the remaining one-half of the toe-pocket formed, after which the pin on the chain 28 stops the machine in the same manner as do the pins previously detailed. It will thus be seen that each of the pins 0 pp p 19 19 is a lock-trip, and by them the chain 28 is divided into a series of lock'tripping sections, one section predeterminin g the length of the leg of the stocking, one half the length of the heel-bulge, one the remaining half thereof, the next consecutive sect-ion predetermining the length of the foot and the two remaining sections the toe-bulge. In the diagram Fig.

8 section :0 is the leg-section, 0c the narrowin g heel-section, section 00 the widening heelsection, section 00 the foot-section, and sections 00 and 50 constitute the toe-forming sections, each of these sections corresponding to the chain-sections previously detailed.

I do not confine myself to the exact specific structure set out and could make numerous modifications without departing from the spirit of my invention.

Having now described my invention, what I claim as new, and desire to secure by Letters Patent, is-

1. The combination in a circular-knitting machine of a needle-retaining part, a camcarrying cylinder, means for actuating said cam-carrying cylinder reciprocally, consisting of a segmental rack, an actuating second- V ary belt-wheel therefor, an intervening link pivoted to the belt-wheel at one end and to a rigid part of the rack at the other, a primary belt-wheel, a pinion actuated by said rack, a supporting-shaft for said pinion, pulley 33 and provisions to couple the pinion thereto, said shaft being the direct actuatingshaft for the cam-cylinder, a loose pulley arranged concentrically with the shaft, a spacing-chain arranged concentrically with the shaft, a series of tripping-pins carried by the chain, means for actuating said chain, a clutch-controlling mechanism, means adapted to be engaged and operated by the chainpins to actuate said controlling mechanism and a belt connected with the primary source of power and adapted to be shipped from the loose pulley onto the fast pulley, when the reciprocating mechanism is idle.

2. The combination in a circular-knitting machine of a rotating camcylinder, a series of needles operated thereby, an actuatingshaft therefor, fast and loose belt-pulleys mounted on this shaft connected with a prime source of power, means for automatically arresting said actuating-shaft, consisting of a belt-shifter, an operating-lever therefor, a sprocket-wheel mounted concentrically on said shaft, a chain having a series of locktrips carried thereby, a pivoted lever operated by said trips at predeterminedpositions of the chain, whereby on the said spacing-.

chain reaching a predetermined position the chain will actuate the aforesaid pivoted lever and through the means described force the belt from the fast to the loose pulley.

3. The combination in a circular-knitting machine of a rotating cam-cylinder, an actuating-shaft therefor, carrying a fast and loose pulley at one end and a cylinder-actuating gear at the other, a sprocket-Wheel concentrically arranged with said shaft, a chain carrying aseries of lock-trips, a pivoted lever operated by said chain at a predetermined position, a ratchet-wheel mounted concentrically with the shaft and adapted to actuate the sprocket-wheel, a tripping-pin carried by said shaft, a connecting-lever carrying a pawl interposed between the said pin and the said ratchet-wheel, a belt-shifter and a connecting mechanism between the said pivoted lever and belt-shifter.

4. The combination in a circular-knitting machine of a rotary cam-cylinder, an actuating-shaft therefor carrying a fast and loose pulley at one end and a cylinder-actuating gear at the other, a sprocket-wheel havingits teeth arranged concentrically with said shaft and having a rotary motion independent" of the motion of the shaft a tooth carried by said shaft and connecting means between said sprocket-Wheel and said tooth whereby the former is actuated by the latter, a belt-shiftercontrolling lever, a spacing-chain carried by the said sprocket-wheel having a series of lockin g trips secured thereto at predetermined points thereon, and a belt-shifter operated thereby through an intervening mechanism.

5. The combination in a circular-knitting machine of a reciprocating cylinder, a series of needles operated thereby, means for arresting said cylinder at a predetermined number of reciprocations, consisting of a sprocketwheel concentrically arranged with the shaft, buthaving a motion independent of the shaft, a tripping-tooth carried by the shaft, a connection between the tripping-tooth and the sprocket-wheel a spacing-chain having projecting pins carried by the sprocket-wheel, a lever adapted to be operated by said pins, a belt-shifter, a bellcrank lever connecting said lever and belt-shifter operated by said lever, a supporting and actuating shaft having a fast and loose pulley at one end and a cam -cylinder-operating gear at the other, means for reciprocating said shaft, consisting of a segmental rack, an actuating belt-wheel therefor, a connecting-link, a pinion mounted on the shaft, a clutch mechanism adapted to engage the pinion with the shaft, and means interposed between the pinion and the chaincontrolled tripping-lever, and controlled by said lever, whereby when the chain-pins actuate the said lever the pinion is disengaged from the shaft and the reciprocating cylinder is thereby arrested.

6. The combination in a circular-knitting machine of a reciprocating cam-cylinder, a series of needles operated thereby, means for reciprocating said cylinder, consisting of a supporting and actuating shaft, a pinion carried by said shaft, an actuating-rack therefor, means for reciprocating said rack, means for arresting said cylinder after a predetermined number of reciprocations consisting of a sprocketwheel concentrically arranged with the shaft a spacing-chain provided with pins and carried by said sprocket-wheel, a sleeve supported from the main shaft and on which the sprocket-wheel is journaled, an actuating ratchet-Wheel therefor, an actuatinglever having a dog for rotating said Wheel, a tooth carried by the shaft as an actuating means for said lever, a clutch mechanism adapted to engage the pinion to the shaft, a

locking-lever adapted to be engaged by said chain-pins and means interposed between the pinion and the chain-controlled lever, Where by on said lever being engaged by the pins of the chain, it will unlock the pinion from the shaft.

7. The combination in a circular-knitting machine of a main actuating-shaft, a cam-carrying cylinder operated thereby, a sprocketwheel arranged concentrically with said shaft,

a spacing-chain carried bysaid Wheel, a trip-t tooth carried by said shaft and adapted to actuate the sprocket-Wheel through an in termediate mechanism consisting of a lever engaged by said tooth, a pawl carried by said lever and a ratchet-wheel fixed to the sprocket-Wheel with Which ratchet-Wheel said pawl engages, a fast and loose pulley carried by said main shaft, abelt-shifter, a tripping-lever operated bysaid chain and a mechanical connection between the said lever andthe belt-shifter.

8. The combination in a circular-knitting machine of a rotating cam-cylinder, an actuating-shaftthereforcarryingafastandaloose I I I centrically With said shaft, a tripping chain carried by said Wheel, a tripping-tooth carried by said shaft means operated by said tooth for actuating said sprocket-Wheel, means for rotatively reciprocating the shaft, a pinionclutch andm cans for arresting the reciprocal movements of the shaft, consisting of a lever actuated by the chain and a spring-contained clutch-operatin g rod controlled by the lever.

In testimony of which invention I hereunto set my hand.

THOS. J. HOLTON.

Witnesses:

H. A. HERE, JOSHUA R. Mono-AN. 

